README

IGAFrac is a MATLAB code for simulating fracture within the Iso-Geometric Analysis paradigm. The geometry is represented by PHT-splines (polynomial splines over hierarchical T-meshes), and is based on the nurbs package (distributed under the GNU General Public License v3.0). The code adopts a modular style, similar to that of PyFEM.

The following models are available:

IGA Models

Linear Elasticity
Phase-field Fracture

Materials

Isotropic Elastic

Nonlinear solver

Newton-Raphson
Staggered
Quasi Newton-Raphson with extrapolation
Arc-length

Other options

Realtime output
VTK writer

Getting started

Run one of the examples in 'inputData' folder!

Contribute

Pull request/Issues

Please consider citing the following paper if you use our code:

Bharali et. al. (2022) A robust monolithic solver for phase-field fracture integrated with fracture energy based arc-length method and under-relaxation. link

IGAFrac

Install / Use